<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>个人简历</title>
    <style>
        *{
            padding:0;
            margin:0;
            box-sizing: border-box;
        }
        nav{
            widows: 100%;
            height: 40px;
            background-color: #343A40;
        }

        .main{
            width: 1000px;
            height: 700px;
            border: 1px solid black;
            margin: 10px auto;
        }
    </style>
</head>
<body>
    <nav></nav>
    <div class="main"></div>
</body>
</html>